CN103515135A - Thin keyboard - Google Patents

Thin keyboard Download PDF

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Publication number
CN103515135A
CN103515135A CN201310435237.8A CN201310435237A CN103515135A CN 103515135 A CN103515135 A CN 103515135A CN 201310435237 A CN201310435237 A CN 201310435237A CN 103515135 A CN103515135 A CN 103515135A
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CN
China
Prior art keywords
layer
switch
thin film
area
film circuit
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Pending
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CN201310435237.8A
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Chinese (zh)
Inventor
赵令溪
颜志仲
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Darfon Electronics Suzhou Co Ltd
Darfon Electronics Corp
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Darfon Electronics Suzhou Co Ltd
Darfon Electronics Corp
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Application filed by Darfon Electronics Suzhou Co Ltd, Darfon Electronics Corp filed Critical Darfon Electronics Suzhou Co Ltd
Priority to CN201310435237.8A priority Critical patent/CN103515135A/en
Publication of CN103515135A publication Critical patent/CN103515135A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a thin keyboard. The thin keyboard comprises a thin-film switch layer, a light guiding plate, an elastic layer, an actuating layer and a light source. The thin-film switch layer comprises multiple switches. The light guiding plate is arranged on the thin-film switch layer. The elastic layer is light-transmittable, provided with multiple pressing regions and arranged on the front side of the light guiding plate. The actuating layer is arranged between the thin-film switch layer and the elastic layer and provided with multiple protrusion structures. Each protrusion structure is respectively located under one pressing region and corresponds to one switch. The light source is adjacent to the light guiding plate and used for emitting light rays, the light rays are emitted into the light guiding plate, conducted in the light guiding plate and then emitted out of the front side of the light guiding plate towards the elastic layer. The thin keyboard does not need a scissor type supporting device, an elastic actuator and the like, a keycap is arranged in a pressing region of the light-transmittable elastic layer, and the overall thickness is remarkably decreased.

Description

Slight keyboard
Technical field
The present invention relates to a kind of slight keyboard, particularly about a kind of slim illuminated keyboard.
Background technology
Along with user's user demand increases, keyboard is no longer only to provide simple input peripheral device, the function of auxiliary input and attractive in appearance also have required.At present existingly on the market provide keyboard backlight, can allow user is clear under back lighting inerrably understands key position, unlikely input error, or affect attractive in appearance on sense organ.
Refer to Fig. 1, the fragmentary sectional view of the illuminated keyboard 1 that Fig. 1 is prior art.Illuminated keyboard 1 comprises a plurality of buttons that are installed on back lighting device 18.In Fig. 1, only illustrate a button as representative.Illuminated keyboard 1 comprises base plate 10, thin film switch 12, keycap 14, scissor bracing or strutting arrangement 16, elastic actuator 17 and back lighting device 18.Scissor bracing or strutting arrangement 16 is installed on base plate 10, forms and assist the fixing structure of scissor bracing or strutting arrangement 16 on base plate 10.Keycap 14 is installed on scissor bracing or strutting arrangement 16.The vertical movement that scissor bracing or strutting arrangement 16 restriction keycaps 14 are done with respect to thin film switch 12, in not moving between pressing position and pressing position.
Thin film switch 12 is consisted of upper film circuit 122 and lower thin film circuit 124, and by insulating element 126, upper film circuit 122 and lower thin film circuit 124 is separated.Elastic actuator 17 is arranged on upper film circuit 122.As shown in Figure 1, general elastic actuator 17 is Elastic Circular acrosome (resilient dome), has suitable height.External force is applied on keycap 14, allows keycap 14 move towards upper film circuit 122.Elastic actuator 17 produces distortion along with the movement of keycap 14, moves, and then open thin film switch 12 to activate 122 distortion of upper film circuit towards lower thin film circuit 124.
Back lighting device 18 comprises light guide plate 180, light source 182 and catoptric arrangement 184.Light guide plate 180 has light inlet side 1802, front 1804 and the back side 1806.Light inlet side 1802 is as the incidence surface of light source 182 emission of lights.
The contiguous light guide plate 180 of light source 182 arranges, i.e. the side 1802 of contiguous light guide plate 180.Light source 182 is in order to emission of light, injects light guide plate 180 and in the interior conduction of light guide plate 180.Catoptric arrangement 184 is arranged on the light guide plate 180 back side 1806.Catoptric arrangement 184 is in order to by the front 1804 of the light guiding light guide plate 180 of directive catoptric arrangement 184, and then penetrates from the front 1804 of light guide plate 180.Back lighting device 18 also comprises reflector plate 186.Reflector plate 186 is attached on the light guide plate 180 back side 1806, in order to assist to be reflected in the light of light guide plate 180 interior conduction.
Base plate 10 has the first transparent area 102, has the second transparent area 142 on keycap 14.In actual product design, the first transparent area 102 can be a through hole.When light is derived from light guide plate 180, sequentially by the second transparent area 142 of the first transparent area 102, thin film switch 12, elastic actuator 17 and keycap 14.Elastic actuator 17 can consist of transparent or semitransparent material, allow light can be directly by elastic actuator 17 to arrive the second transparent area 142 of keycap 14, or light by elastic actuator 17 diffusions to illuminate keycap 14 around and to allow by the light of the second transparent area 142 comparatively soft.If symbol or letter on the second corresponding keycap 14 in transparent area 142, allow the second transparent area 142 conventional letters or alphabetical region.Therefore,, when environment light source is faint, illuminated keyboard 1 allows different buttons be easy to differentiate, and facilitates user to input data.Supplementary notes, if base plate 10 is made by light-permeable material, the first transparent area 102 obtains with the form of through hole not for it.The region of base plate 10 outside the first transparent area 102 also allowed, and the mode by a little light designs, so that the backlight effect with respect to the first transparent area 102 to be provided.
The illuminated keyboard 1 of prior art, the assemblies such as its keycap 14, scissor bracing or strutting arrangement 16, elastic actuator 17 all have suitable thickness, allow it cannot attenuate.
Summary of the invention
Therefore, the technical problem that institute of the present invention wish solves is to provide a kind of slight keyboard, particularly thin luminous keyboard, and its framework need not comprise scissor bracing or strutting arrangement, elastic actuator etc., can significantly reduce the thickness of keyboard integral body.
In order to achieve the above object, the present invention proposes a kind of slight keyboard, this slight keyboard comprise thin film switch once, the elastic layer of light-permeable and activate layer.Thin film switch layer comprises a plurality of switches; The elastic layer of light-permeable has top surface and is formed on a plurality of area presseds on this top surface, and this elastic layer is arranged on this thin film switch layer, and the top surface of this elastic layer upward; Activating layer is arranged between this thin film switch layer and this elastic layer, and there are a plurality of bulge-structures, wherein each this bulge-structure lays respectively at below and corresponding this switch of this area pressed, when user press the plurality of area pressed one of them time, by this bulge-structure corresponding to this area pressed, trigger this switch that this area pressed is corresponding.
As optional technical scheme, this slight keyboard also comprises light guide plate and light source, and light guide plate is arranged between this thin film switch layer and this elastic layer, and has front; Contiguous this light guide plate of light source arranges, and the light of this light source transmitting is injected this light guide plate and conducts in this light guide plate, and then penetrates and this elastic layer of directive from this front.
As optional technical scheme, this slight keyboard further comprises replys layer, replying layer is arranged between this thin film switch layer and this actuating layer, and there are a plurality of Elastic Circular acrosomes, wherein each this bulge-structure lays respectively between this area pressed and this Elastic Circular acrosome, when user first presses this area pressed, and then while discharging this area pressed, this Elastic Circular acrosome corresponding by this area pressed moves upward this area pressed.
As optional technical scheme, this slight keyboard further comprises capacitive sensing layer, capacitive sensing layer is arranged at the below of this elastic layer and is positioned at the top of this thin film switch layer, make the plurality of switch in this thin film switch layer not affect the running of this capacitive sensing layer, this capacitive sensing layer provides capacitor-type touch input, the track that the finger that user detects user by this capacitor-type touch input moves on the plurality of area pressed.
As optional technical scheme, each this area pressed is all platform protruding upward, between every two these adjacent area presseds, has sunk area, and this sunk area allows in user's sense of touch and differentiates two these adjacent area presseds.
As optional technical scheme, this light guide plate also has the ,Gai back side, the back side for this positive reverse side, and this actuation part is formed on this back side.
As optional technical scheme, this slight keyboard further comprises separator, and separator is arranged between this light guide plate and this thin film switch layer, and this actuating layer is formed on the lower surface or upper surface of this separator.
As optional technical scheme, this thin film switch layer comprises lower thin film circuit, insulating element and upper film circuit.The lower contact that lower thin film circuit comprises each this switch; Insulating element is arranged on this lower thin film circuit; Upper film circuit is arranged on this insulating element, and the upper contact that comprises each switch, wherein this insulating element separates to form a plurality of spaces by this lower thin film circuit and this upper film circuit, this upper contact that each this lower contact is corresponding with it is placed in Yi Gegai space, the external force being applied on this area pressed of this switch of alignment allows the distortion of this upper film circuit move towards this lower thin film circuit, when this upper film circuit displacement is when allowing this upper contact of this switch and this lower contact of this switch contact, this switch open.
As optional technical scheme, this upper film circuit has top surface, and this actuating layer is formed on this top surface.
Slight keyboard of the present invention, its framework need not comprise scissor bracing or strutting arrangement, elastic actuator etc., and its keycap changes into be implemented by the area pressed of the elastic layer of light-permeable, significantly reduces whole thickness.
In addition, the present invention also proposes another kind of slight keyboard, the thin film switch layer that this slight keyboard comprises light guide plate, light-permeable, the elastic layer of light-permeable, actuating layer and light source.Light guide plate has front; The thin film switch layer of light-permeable is arranged on this front, and comprises a plurality of switches; The elastic layer of light-permeable has top surface and is formed on a plurality of area presseds on this top surface, and this elastic layer is arranged on this thin film switch layer, and the top surface of this elastic layer, causes each this area pressed to homogeneous this switch upward; Activating layer is arranged between this thin film switch layer and this elastic layer, and there are a plurality of bulge-structures, wherein each this bulge-structure lays respectively at below and corresponding this switch of an area pressed, when user press the plurality of area pressed one of them time, by this bulge-structure corresponding to this area pressed, trigger this switch that this area pressed is corresponding; Contiguous this light guide plate of light source arranges, and the light of this light source transmitting is injected this light guide plate and conducts in this light guide plate, and then penetrates and this thin film switch layer of directive and this elastic layer from this front.
As optional technical scheme, each this area pressed is all platform protruding upward, between every two these adjacent area presseds, has sunk area, and this sunk area allows in user's sense of touch and differentiates two these adjacent area presseds.
As optional technical scheme, this slight keyboard further comprises separator, and separator is arranged between this elastic layer and this thin film switch layer, and this actuating layer is formed on the lower surface or upper surface of this separator.
As optional technical scheme, this thin film switch layer comprises lower thin film circuit, insulating element and upper film circuit.The lower contact that lower thin film circuit comprises each this switch; Insulating element is arranged on this lower thin film circuit; Upper film circuit is arranged on this insulating element, and the upper contact that comprises each this switch, wherein this insulating element separates to form a plurality of spaces by this lower thin film circuit and this upper film circuit, this upper contact that each this lower contact is corresponding with it is placed in Yi Gegai space, the external force being applied on this area pressed of this switch of alignment allows the distortion of this upper film circuit move towards this lower thin film circuit, when this upper film circuit displacement is when allowing this upper contact of this switch and this lower contact of this switch contact, this switch open.
As optional technical scheme, this upper film circuit has top surface, and this actuating layer is formed on this top surface.
Slight keyboard of the present invention, its framework need not comprise scissor bracing or strutting arrangement, elastic actuator etc., and its keycap changes into be implemented by the area pressed of the elastic layer of light-permeable, significantly reduces whole thickness.
In addition, the present invention also proposes another slight keyboard, the elastic layer that this slight keyboard comprises thin film switch layer, light-permeable, actuating layer and light source.Thin film switch layer comprises a plurality of switches; The elastic layer of light-permeable has top surface and is formed on a plurality of area presseds on this top surface, and this elastic layer is arranged on this thin film switch layer, and the top surface of this elastic layer, causes each this area pressed to homogeneous this switch upward; Activating layer is arranged between this thin film switch layer and this elastic layer, and there are a plurality of bulge-structures, wherein each this bulge-structure lays respectively at below and corresponding this switch of this area pressed, when user press the plurality of area pressed one of them time, by this bulge-structure corresponding to this area pressed, trigger this switch that this area pressed is corresponding; Contiguous this elastic layer of light source arranges, and the light of this light source transmitting is injected this elastic layer and conducts in this elastic layer, and then penetrates from this top surface of this elastic layer.
As optional technical scheme, each this area pressed is all platform protruding upward, between every two these adjacent area presseds, has sunk area, and this sunk area allows in user's sense of touch and differentiates two these adjacent area presseds.
As optional technical scheme, this slight keyboard further comprises replys layer, replying layer is arranged between this thin film switch layer and this actuating layer, and there are a plurality of Elastic Circular acrosomes, wherein each this bulge-structure lays respectively between this area pressed and this Elastic Circular acrosome, when user first presses this area pressed, and then while discharging this area pressed, by this Elastic Circular acrosome corresponding to this area pressed, this area pressed that this Elastic Circular acrosome is corresponding is moved upward.
As optional technical scheme, this slight keyboard further comprises capacitive sensing layer, capacitive sensing layer is arranged at the below of this elastic layer and is positioned at the top of this thin film switch layer, make the plurality of switch in this thin film switch layer not affect the running of this capacitive sensing layer, this capacitive sensing layer provides capacitor-type touch input, the track that the finger that user detects user by this capacitor-type touch input moves on the plurality of area pressed.
As optional technical scheme, this elastic layer also has basal surface, and this actuation part is formed on this basal surface.
As optional technical scheme, this thin film switch layer comprises lower thin film circuit, insulating element and upper film circuit.The lower contact that lower thin film circuit comprises each this switch; Insulating element is arranged on this lower thin film circuit; Upper film circuit is arranged on this insulating element, and the upper contact that comprises each this switch, wherein this insulating element separates to form a plurality of spaces by this lower thin film circuit and this upper film circuit, this upper contact that each this lower contact is corresponding with it is placed in Yi Gegai space, the external force being applied on this area pressed of this switch of alignment allows the distortion of this upper film circuit move towards this lower thin film circuit, when this upper film circuit displacement is when allowing this upper contact of this switch and this lower contact of this switch contact, this switch open.
As optional technical scheme, this upper film circuit has top surface, and this actuating layer is formed on this top surface.
Different from prior art, slight keyboard of the present invention, its framework need not comprise scissor bracing or strutting arrangement, elastic actuator etc., and its keycap changes into be implemented by the area pressed of the elastic layer of light-permeable, significantly reduces whole thickness.
Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the fragmentary sectional view of the illuminated keyboard of prior art;
Fig. 2 is the fragmentary sectional view of the first preferred embodiment of slight keyboard of the present invention;
Fig. 3 is the routine fragmentary sectional view of a variation of the first preferred embodiment of slight keyboard of the present invention;
Fig. 4 is that another of the first preferred embodiment of slight keyboard of the present invention changes routine fragmentary sectional view;
Fig. 5 is the routine fragmentary sectional view of another variation of the first preferred embodiment of slight keyboard of the present invention;
Fig. 6 is the routine fragmentary sectional view of a variation again of the first preferred embodiment of slight keyboard of the present invention;
Fig. 7 is the fragmentary sectional view of the second preferred embodiment of slight keyboard of the present invention;
Fig. 8 is the routine fragmentary sectional view of a variation of the second preferred embodiment of slight keyboard of the present invention;
Fig. 9 is that another of the second preferred embodiment of slight keyboard of the present invention changes routine fragmentary sectional view;
Figure 10 is the fragmentary sectional view of the 3rd preferred embodiment of slight keyboard of the present invention;
Figure 11 is the routine fragmentary sectional view of a variation of the 3rd preferred embodiment of slight keyboard of the present invention;
Figure 12 is that another of the 3rd preferred embodiment of slight keyboard of the present invention changes routine fragmentary sectional view.
Embodiment
Refer to Fig. 2, the fragmentary sectional view of the first preferred embodiment that Fig. 2 is slight keyboard of the present invention.Slight keyboard 2 of the present invention comprises thin film switch layer 20, elastic layer 24 and activates layer 26.
Thin film switch layer 20 comprises a plurality of switches 202.In Fig. 2, only illustrate three switches 202 as representative.
Elastic layer 24 is light-permeable, and has top surface 242 and be formed on a plurality of area presseds 244 on its top surface 242.In Fig. 2, only illustrate three area presseds 244 as representative.A plurality of area presseds 244 are symbol or the letter on corresponding slim slight keyboard 2.
In a specific embodiment, each area pressed 244 is all platform protruding upward, on it and print its corresponding symbol or monogram.Between every two adjacent area presseds 244, there is sunk area.Sunk area allows in user's sense of touch can differentiate two adjacent area presseds 244.
Elastic layer 24 is arranged on thin film switch layer 20, and the top surface 242 of elastic layer 24 upward.Activate layer 26 and be arranged between thin film switch layer 20 and elastic layer 24, and there are a plurality of bulge-structures 262.In Fig. 2, only illustrate three bulge-structures 262 as representative.Each bulge-structure 262 lays respectively at the below of an area pressed 244, and a corresponding switch 202.When user press the plurality of area pressed 244 one of them time, by its corresponding bulge-structure 262, trigger its corresponding switch 202.
Further, slight keyboard 2 of the present invention also comprises light guide plate 22 and light source 28.Light guide plate 22 is arranged between thin film switch layer 20 and elastic layer 24, and has the positive 222, back side 224 and light inlet side 226.The contiguous light guide plate 22 of light source 28 arranges.Light source 28, in order to emission of light, is injected light guide plate 22.For example, as shown in Figure 2, the light inlet side 226 of light source 28 contiguous light guide plate 22 arranges.Light inlet side 226 is as the incidence surface of light source 28 emission of lights.Be incident to light in light guide plate 22 in the interior conduction of light guide plate 22, and then penetrate and directive elastic layers 24 from the front 222 of light guide plate 22.
Thin film switch layer 20 comprises lower thin film circuit 204, insulating element 206 and upper film circuit 208.The lower contact 205 that lower thin film circuit 204 comprises each switch 202.Insulating element 206 is arranged on lower thin film circuit 204.Upper film circuit 208 is arranged on insulating element 206, and the upper contact 209 that comprises each switch 202.Insulating element 206 separates lower thin film circuit 204 and upper film circuit 208, to form a plurality of spaces 207.Each lower contact 205 upper contact 209 corresponding with it is placed in Yi Ge space 207.The external force being applied on the area pressed 244 of alignment switch 202 allows upper film circuit 208 distortion move towards lower thin film circuit 204.When upper film circuit 208 displacements are when allowing the upper contact 209 of switch 202 and the lower contact 205 of switch 202 contact, switch 202 is opened.
In Fig. 2, actuation part 26 is formed on the light guide plate 22 back side 224.That is to say, bulge-structure 262 is formed on the light guide plate 22 back side 224.In practical operation, bulge-structure 262 can be one-body molded with light guide plate 22.
Further, light guide plate 22 also comprises catoptric arrangement 228.Catoptric arrangement 228 is arranged on the light guide plate 22 back side 224.Catoptric arrangement 228 is in order to by the front 222 of the light guiding light guide plate 22 of directive catoptric arrangement 228, and then penetrates from the front 222 of light guide plate 22.Generally speaking, catoptric arrangement 228 is distributed in corresponding area pressed 244 position.
Refer to Fig. 3, one of the first preferred embodiment that Fig. 3 is slight keyboard of the present invention changes routine fragmentary sectional view.
As shown in Figure 3, slight keyboard 2 of the present invention also comprises separator 29.Separator 29 is arranged between light guide plate 22 and thin film switch layer 20, and has the lower surface 292 that forms actuating layer 26.That is to say, bulge-structure 262 is formed on the lower surface 292 of separator 29.In practical operation, bulge-structure 262 can be one-body molded with separator 29.In Fig. 3, there is the assembly with Fig. 2 duplicate numbers mark, have same or similar structure and function, at this, do not repeat.
Refer to Fig. 4, another of the first preferred embodiment that Fig. 4 is slight keyboard of the present invention changes routine fragmentary sectional view.
As shown in Figure 4, slight keyboard 2 of the present invention also comprises reply layer 25.Reply layer 25 and be arranged at thin film switch layer 20 and activate between layer 26, and there are a plurality of Elastic Circular acrosomes 252.In Fig. 4, only illustrate three Elastic Circular acrosomes 252 as representative.Each bulge-structure 262 lays respectively between an area pressed 244 and an Elastic Circular acrosome 252.When user first presses area pressed 244, and then while discharging area pressed 244, by its corresponding Elastic Circular acrosome 252, can make this corresponding area pressed 244 move upward.
Further, slight keyboard 2 of the present invention comprises capacitive sensing layer 27.Capacitive sensing layer 27 is arranged at the below of elastic layer 24 and is positioned at the top of thin film switch layer 20, makes a plurality of switches 202 in thin film switch layer 20 can not have influence on the running of capacitive sensing layer 27.Capacitive sensing layer 27 provides capacitor-type touch input.User inputs by capacitor-type touch, the track that detecting user's finger moves on a plurality of area presseds 244.In Fig. 4, there is the assembly with Fig. 2, Fig. 3 duplicate numbers mark, have same or similar structure and function, at this, do not repeat.
Refer to Fig. 5, the routine fragmentary sectional view of another variation of the first preferred embodiment that Fig. 5 is slight keyboard of the present invention.
As shown in Figure 5, slight keyboard 2 of the present invention also comprises separator 29.Separator 29 is arranged between light guide plate 22 and thin film switch layer 20, and has the upper surface 294 that forms actuating layer 26.Upper surface 294 is the reverse side of lower surface 292.That is to say, bulge-structure 262 is formed on the upper surface 294 of separator 29.In practical operation, bulge-structure 262 can be one-body molded with separator 29.In Fig. 5, there is the assembly with Fig. 2 duplicate numbers mark, have same or similar structure and function, at this, do not repeat.
Refer to Fig. 6, the routine fragmentary sectional view of a variation again of the first preferred embodiment that Fig. 6 is slight keyboard of the present invention.
As shown in Figure 6, the upper film circuit 208 of slight keyboard 2 of the present invention has the top surface 203 that forms actuating layer 26.That is to say, bulge-structure 262 is formed on the top surface 203 of upper film circuit 208.In practical operation, bulge-structure 262 can be one-body molded with upper film circuit 208.In Fig. 6, there is the assembly with Fig. 2 duplicate numbers mark, have same or similar structure and function, at this, do not repeat.
Refer to Fig. 7, the fragmentary sectional view of the second preferred embodiment that Fig. 7 is slight keyboard of the present invention.Slight keyboard 3 of the present invention comprises light guide plate 32, thin film switch layer 30, elastic layer 34, activates layer 36 and light source 38.
Light guide plate 32 has the positive 322, back side 324 and light inlet side 326.Thin film switch layer 30 is light-permeable, and is arranged on the front 322 of light guide plate 32, and comprises a plurality of switches 302.In Fig. 7, only illustrate three switches 302 as representative.
Elastic layer 34 is light-permeable, and has top surface 342 and be formed on a plurality of area presseds 344 on its top surface 342.In Fig. 7, only illustrate three area presseds 344 as representative.A plurality of area presseds 344 are symbol or the letter on corresponding slight keyboard 3.
In a specific embodiment, each area pressed 344 is all platform protruding upward, on it and print its corresponding symbol or monogram.Between every two adjacent area presseds 344, there is sunk area.Sunk area allows in user's sense of touch can differentiate two adjacent area presseds 344.
Elastic layer 34 is arranged on thin film switch layer 30, and the top surface 342 of elastic layer 34 upward, causes 344 pairs of homogeneous switches 302 of each area pressed.Activate layer 36 and be arranged between thin film switch layer 30 and elastic layer 34, and there are a plurality of bulge-structures 362.In Fig. 7, only illustrate three bulge-structures 362 as representative.Each bulge-structure 362 lays respectively at the below of an area pressed 344, and a corresponding switch 302.When user press a plurality of area pressed 344 one of them time, by its corresponding bulge-structure 362, can trigger its corresponding switch 302.
The contiguous light guide plate 32 of light source 38 arranges.Light source 38, in order to emission of light, is injected light guide plate 32.For example, as shown in Figure 7, the light inlet side 326 of light source 38 contiguous light guide plate 32 arranges.Light inlet side 326 is as the incidence surface of light source 38 emission of lights.Be incident to light in light guide plate 32 in the interior conduction of light guide plate 32, and then penetrate and directive thin film switch layer 30 and elastic layer 34 from the front 322 of light guide plate 32.
Thin film switch layer 30 comprises lower thin film circuit 304, insulating element 306 and upper film circuit 308.The lower contact 305 that lower thin film circuit 304 comprises each switch 302.Insulating element 306 is arranged on lower thin film circuit 304.Upper film circuit 308 is arranged on insulating element 306, and the upper contact 309 that comprises each switch 302.Insulating element 306 separates lower thin film circuit 304 and upper film circuit 308, to form a plurality of spaces 307.Each lower contact 305 upper contact 309 corresponding with it is placed in Yi Ge space 307.The external force being applied on the area pressed 344 of alignment switch 302 allows upper film circuit 308 distortion move towards lower thin film circuit 304.When upper film circuit 308 displacements are when allowing the upper contact 309 of switch 302 and the lower contact 305 of switch 302 contact, switch 302 is opened.
In Fig. 7, upper film circuit 308 has the top surface 303 that forms actuating layer 36.That is to say, bulge-structure 362 is formed on the top surface 303 of upper film circuit 308.In practical operation, bulge-structure 362 can be one-body molded with upper film circuit 308.
Further, light guide plate 32 also comprises catoptric arrangement 328.Catoptric arrangement 328 is arranged on the light guide plate 32 back side 324.Catoptric arrangement 328 is in order to by the front 322 of the light guiding light guide plate 32 of directive catoptric arrangement 328, and then penetrates from the front 322 of light guide plate 32.Generally speaking, catoptric arrangement 328 is distributed in corresponding area pressed 344 position.
Refer to Fig. 8, one of the second preferred embodiment that Fig. 8 is slight keyboard of the present invention changes routine fragmentary sectional view.
As shown in Figure 8, slight keyboard 3 of the present invention also comprises separator 39.Separator 39 is arranged between elastic layer 34 and thin film switch layer 30, and has the lower surface 392 that forms actuating layer 36.That is to say, bulge-structure 362 is formed on the lower surface 392 of separator 39.In practical operation, bulge-structure 362 can be one-body molded with separator 39.In Fig. 8, there is the assembly with Fig. 7 duplicate numbers mark, have same or similar structure and function, at this, do not repeat.
Refer to Fig. 9, another of the second preferred embodiment that Fig. 9 is slight keyboard of the present invention changes routine fragmentary sectional view.
As shown in Figure 9, slight keyboard 3 of the present invention also comprises separator 39.Separator 39 is arranged between elastic layer 34 and thin film switch layer 30, and has the upper surface 394 that forms actuating layer 36.Upper surface 394 is the reverse side of lower surface 392.That is to say, bulge-structure 362 is formed on the upper surface 394 of separator 39.In practical operation, bulge-structure 362 can be one-body molded with separator 39.In Fig. 9, there is the assembly with Fig. 7 duplicate numbers mark, have same or similar structure and function, at this, do not repeat.
Refer to Figure 10, the fragmentary sectional view of the 3rd preferred embodiment that Figure 10 is slight keyboard of the present invention.Slight keyboard 4 of the present invention comprises thin film switch layer 40, elastic layer 44, activates layer 46 and light source 48.
Thin film switch layer 40 comprises a plurality of switches 402.In Figure 10, only illustrate three switches 402 as representative.Elastic layer 44 is light-permeable, and has top surface 442 and be formed on a plurality of area presseds 444 on its top surface 442.In Figure 10, only illustrate three area presseds 444 as representative.A plurality of area presseds 444 are symbol or the letter on corresponding slight keyboard 4.
In a specific embodiment, each area pressed 444 is all platform protruding upward, on it and print its corresponding symbol or monogram.Between every two adjacent area presseds 444, there is sunk area.Sunk area allows in user's sense of touch can differentiate two adjacent area presseds 444.
Elastic layer 44 is arranged on thin film switch layer 40, and the top surface 442 of elastic layer 44 upward, causes 444 pairs of homogeneous switches 402 of each area pressed.Activate layer 46 and be arranged between thin film switch layer 40 and elastic layer 44, and there are a plurality of bulge-structures 462.In Fig. 9, only illustrate three bulge-structures 462 as representative.Each bulge-structure 462 lays respectively at the below of an area pressed 444, and a corresponding switch 402.When user press a plurality of area pressed 444 one of them time, by its corresponding bulge-structure 462, trigger its corresponding switch 402.
The adjacent elastic layer 44 of light source 48 arranges.Light source 48, in order to emission of light, is injected light guide plate 42.For example, as shown in figure 10, the light inlet side 446 of light source 48 contiguous elastic layers 44 arranges.Light inlet side 446 is as the incidence surface of light source 48 emission of lights.Be incident to light in elastic layer 44 in the interior conduction of elastic layer 44, and then penetrate from the top surface 442 of elastic layer 44.
Thin film switch layer 40 comprises lower thin film circuit 404, insulating element 406 and upper film circuit 408.The lower contact 405 that lower thin film circuit 404 comprises each switch 402.Insulating element 406 is arranged on lower thin film circuit 404.Upper film circuit 408 is arranged on insulating element 406, and the upper contact 409 that comprises each switch 402.Insulating element 406 separates lower thin film circuit 404 and upper film circuit 408, to form a plurality of spaces 407.Each lower contact 405 upper contact 409 corresponding with it is placed in Yi Ge space 407.The external force being applied on the area pressed 444 of alignment switch 402 allows upper film circuit 308 distortion move towards lower thin film circuit 404.When upper film circuit 308 displacements are when allowing the upper contact 409 of switch 402 and the lower contact 405 of switch 402 contact, switch 402 is opened.
In Figure 10, elastic layer 44 also has the basal surface 448 that forms actuating layer 46.That is to say, bulge-structure 462 is formed on the basal surface 448 of elastic layer 44.In practical operation, bulge-structure 462 can be one-body molded with elastic layer 44.
Refer to Figure 11, one of the 3rd preferred embodiment that Figure 11 is slight keyboard of the present invention changes routine fragmentary sectional view.
As shown in figure 11, upper film circuit 408 has the top surface 403 that forms actuating layer 46.That is to say, bulge-structure 462 is formed on the top surface 403 of upper film circuit 408.In practical operation, bulge-structure 462 can be one-body molded with upper film circuit 408.In Figure 11, there is the assembly with Figure 10 duplicate numbers mark, have same or similar structure and function, at this, do not repeat.
Refer to Figure 12, another of the 3rd preferred embodiment that Figure 12 is slight keyboard of the present invention changes routine fragmentary sectional view.
As shown in figure 12, slight keyboard 4 of the present invention also comprises separator 49.Separator 49 is arranged between elastic layer 44 and thin film switch layer 40, and has the lower surface 492 that forms actuating layer 46.That is to say, bulge-structure 462 is formed on the lower surface 492 of separator 49.In practical operation, bulge-structure 462 can be one-body molded with separator 49.
Further, slight keyboard 4 of the present invention also comprises reply layer 45.Reply layer 45 and be arranged at thin film switch layer 40 and activate between layer 46, and there are a plurality of Elastic Circular acrosomes 452.In Figure 12, only illustrate three Elastic Circular acrosomes 452 as representative.Each bulge-structure 462 lays respectively between an area pressed 444 and an Elastic Circular acrosome 452.When user first presses area pressed 444, and then while discharging area pressed 444, by its corresponding Elastic Circular acrosome 452, can make its corresponding area pressed 444 move upward.
Further, slight keyboard 4 of the present invention comprises capacitive sensing layer 47.Capacitive sensing layer 47 is arranged at the below of elastic layer 44 and is positioned at the top of thin film switch layer 40, makes a plurality of switches 402 in thin film switch layer 40 can not have influence on the running of capacitive sensing layer 47.Capacitive sensing layer 47 provides capacitor-type touch input.User inputs by capacitor-type touch, the track that detecting user's finger moves on a plurality of area presseds 444.In Figure 12, there is the assembly with Figure 10 duplicate numbers mark, have same or similar structure and function, at this, do not repeat.
In a specific embodiment, light guide plate 22, light guide plate 32 can be made by acryl, silica resin (silicone), thermoplastic poly amido formate (thermoplastic polyurethane, TPU) or other commercial leaded light macromolecular material.The layer thickness of light guide plate 32 can be determined according to need, is not particularly limited.For example, in an example, the thickness range of light guide plate 32 is about 0.125mm~0.25mm.
In a specific embodiment, catoptric arrangement 228, catoptric arrangement 328 (for example print point-like light color on the 224, back side 324 overleaf, white) ink forms, also can use micro-reflection structure (micro-lens), also can be one-body molded by plated film mode and light guide plate 22, light guide plate 32.But the formation of catoptric arrangement 228, catoptric arrangement 328 is not limited with above-mentioned processing procedure.
In a specific embodiment, light source 28, light source 38, light source 48 can be light-emitting diode (light-emitting diode, LED) devices, but the present invention is not as limit.Light source 28, light source 38, light source 48 can be also other light-emitting devices, for example, and cathode fluorescent tube (cold cathode fluorescent lamp, CCFL).
In a specific embodiment, reply layer 25, reply layer 45 can form by stamped sheet metal, and then stamp out Elastic Circular acrosome 252, Elastic Circular acrosome 452.
In sum, the framework that can fully understand slight keyboard of the present invention need not scissor bracing or strutting arrangement, elastic actuator etc., and its keycap changes into be implemented by the area pressed of the elastic layer of light-permeable, significantly reduces whole thickness.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims (21)

1. a slight keyboard, is characterized in that this slight keyboard comprises:
Thin film switch layer, comprises a plurality of switches;
The elastic layer of light-permeable, has top surface and is formed on a plurality of area presseds on this top surface, and this elastic layer is arranged on this thin film switch layer, and the top surface of this elastic layer upward; And
Activate layer, be arranged between this thin film switch layer and this elastic layer, and there are a plurality of bulge-structures, wherein each this bulge-structure lays respectively at below and corresponding this switch of this area pressed, when user press the plurality of area pressed one of them time, by this bulge-structure corresponding to this area pressed, trigger this switch that this area pressed is corresponding.
2. slight keyboard according to claim 1, is characterized in that this slight keyboard also comprises:
Light guide plate, is arranged between this thin film switch layer and this elastic layer, and has front; And
Light source, contiguous this light guide plate arranges, and the light of this light source transmitting is injected this light guide plate and conducts in this light guide plate, and then penetrates and this elastic layer of directive from this front.
3. slight keyboard according to claim 1, is characterized in that this slight keyboard further comprises:
Reply layer, be arranged between this thin film switch layer and this actuating layer, and there are a plurality of Elastic Circular acrosomes, wherein each this bulge-structure lays respectively between this area pressed and this Elastic Circular acrosome, when user first presses this area pressed, and then while discharging this area pressed, this Elastic Circular acrosome corresponding by this area pressed moves upward this area pressed.
4. slight keyboard according to claim 1, is characterized in that this slight keyboard further comprises:
Capacitive sensing layer, be arranged at the below of this elastic layer and be positioned at the top of this thin film switch layer, make the plurality of switch in this thin film switch layer not affect the running of this capacitive sensing layer, this capacitive sensing layer provides capacitor-type touch input, the track that the finger that user detects user by this capacitor-type touch input moves on the plurality of area pressed.
5. slight keyboard according to claim 1, it is characterized in that: each this area pressed is all platform protruding upward, between every two these adjacent area presseds, have sunk area, this sunk area allows in user's sense of touch and differentiates two these adjacent area presseds.
6. slight keyboard according to claim 2, is characterized in that: this light guide plate also has the ,Gai back side, the back side for this positive reverse side, and this actuation part is formed on this back side.
7. slight keyboard according to claim 2, is characterized in that this slight keyboard further comprises:
Separator, is arranged between this light guide plate and this thin film switch layer, and this actuating layer is formed on the lower surface or upper surface of this separator.
8. slight keyboard according to claim 1, is wherein characterised in that this thin film switch layer comprises:
Lower thin film circuit, the lower contact that comprises each this switch;
Insulating element, is arranged on this lower thin film circuit; And
Upper film circuit, be arranged on this insulating element, and the upper contact that comprises each switch, wherein this insulating element separates to form a plurality of spaces by this lower thin film circuit and this upper film circuit, this upper contact that each this lower contact is corresponding with it is placed in Yi Gegai space, the external force being applied on this area pressed of this switch of alignment allows the distortion of this upper film circuit move towards this lower thin film circuit, when this upper film circuit displacement is when allowing this upper contact of this switch and this lower contact of this switch contact, this switch open.
9. slight keyboard according to claim 8, is characterized in that: this upper film circuit has top surface, and this actuating layer is formed on this top surface.
10. a slight keyboard, is characterized in that this slight keyboard comprises:
Light guide plate, has front;
The thin film switch layer of light-permeable, is arranged on this front, and comprises a plurality of switches;
The elastic layer of light-permeable, has top surface and is formed on a plurality of area presseds on this top surface, and this elastic layer is arranged on this thin film switch layer, and the top surface of this elastic layer, causes each this area pressed to homogeneous this switch upward;
Activate layer, be arranged between this thin film switch layer and this elastic layer, and there are a plurality of bulge-structures, wherein each this bulge-structure lays respectively at below and corresponding this switch of an area pressed, when user press the plurality of area pressed one of them time, by this bulge-structure corresponding to this area pressed, trigger this switch that this area pressed is corresponding; And
Light source, contiguous this light guide plate arranges, and the light of this light source transmitting is injected this light guide plate and conducts in this light guide plate, and then penetrates and this thin film switch layer of directive and this elastic layer from this front.
11. slight keyboards according to claim 10, it is characterized in that: each this area pressed is all platform protruding upward, between every two these adjacent area presseds, have sunk area, this sunk area allows in user's sense of touch and differentiates two these adjacent area presseds.
12. slight keyboards according to claim 11, is characterized in that this slight keyboard further comprises:
Separator, is arranged between this elastic layer and this thin film switch layer, and this actuating layer is formed on the lower surface or upper surface of this separator.
13. slight keyboards according to claim 11, is characterized in that this thin film switch layer comprises:
Lower thin film circuit, the lower contact that comprises each this switch;
Insulating element, is arranged on this lower thin film circuit; And
Upper film circuit, be arranged on this insulating element, and the upper contact that comprises each this switch, wherein this insulating element separates to form a plurality of spaces by this lower thin film circuit and this upper film circuit, this upper contact that each this lower contact is corresponding with it is placed in Yi Gegai space, the external force being applied on this area pressed of this switch of alignment allows the distortion of this upper film circuit move towards this lower thin film circuit, when this upper film circuit displacement is when allowing this upper contact of this switch and this lower contact of this switch contact, this switch open.
14. slight keyboards according to claim 13, is characterized in that: this upper film circuit has top surface, and this actuating layer is formed on this top surface.
15. 1 kinds of slight keyboards, is characterized in that this slight keyboard comprises:
Thin film switch layer, comprises a plurality of switches;
The elastic layer of light-permeable, has top surface and is formed on a plurality of area presseds on this top surface, and this elastic layer is arranged on this thin film switch layer, and the top surface of this elastic layer, causes each this area pressed to homogeneous this switch upward;
Activate layer, be arranged between this thin film switch layer and this elastic layer, and there are a plurality of bulge-structures, wherein each this bulge-structure lays respectively at below and corresponding this switch of this area pressed, when user press the plurality of area pressed one of them time, by this bulge-structure corresponding to this area pressed, trigger this switch that this area pressed is corresponding; And
Light source, contiguous this elastic layer arranges, and the light of this light source transmitting is injected this elastic layer and conducts in this elastic layer, and then penetrates from this top surface of this elastic layer.
16. slight keyboards according to claim 15, it is characterized in that: each this area pressed is all platform protruding upward, between every two these adjacent area presseds, have sunk area, this sunk area allows in user's sense of touch and differentiates two these adjacent area presseds.
17. slight keyboards according to claim 16, is characterized in that this slight keyboard further comprises:
Reply layer, be arranged between this thin film switch layer and this actuating layer, and there are a plurality of Elastic Circular acrosomes, wherein each this bulge-structure lays respectively between this area pressed and this Elastic Circular acrosome, when user first presses this area pressed, and then while discharging this area pressed, by this Elastic Circular acrosome corresponding to this area pressed, this area pressed that this Elastic Circular acrosome is corresponding is moved upward.
18. slight keyboards according to claim 17, is characterized in that this slight keyboard further comprises:
Capacitive sensing layer, be arranged at the below of this elastic layer and be positioned at the top of this thin film switch layer, make the plurality of switch in this thin film switch layer not affect the running of this capacitive sensing layer, this capacitive sensing layer provides capacitor-type touch input, the track that the finger that user detects user by this capacitor-type touch input moves on the plurality of area pressed.
19. slight keyboards according to claim 16, is characterized in that: this elastic layer also has basal surface, and this actuation part is formed on this basal surface.
20. slight keyboards according to claim 16, is characterized in that this thin film switch layer comprises:
Lower thin film circuit, the lower contact that comprises each this switch;
Insulating element, is arranged on this lower thin film circuit; And
Upper film circuit, be arranged on this insulating element, and the upper contact that comprises each this switch, wherein this insulating element separates to form a plurality of spaces by this lower thin film circuit and this upper film circuit, this upper contact that each this lower contact is corresponding with it is placed in Yi Gegai space, the external force being applied on this area pressed of this switch of alignment allows the distortion of this upper film circuit move towards this lower thin film circuit, when this upper film circuit displacement is when allowing this upper contact of this switch and this lower contact of this switch contact, this switch open.
21. slight keyboards according to claim 20, is characterized in that: this upper film circuit has top surface, and this actuating layer is formed on this top surface.
CN201310435237.8A 2013-09-23 2013-09-23 Thin keyboard Pending CN103515135A (en)

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CN201310435237.8A CN103515135A (en) 2013-09-23 2013-09-23 Thin keyboard

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Cited By (5)

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CN103915273A (en) * 2014-03-26 2014-07-09 海门市曼博莱电子发展有限公司 Composite touch thin film switch
CN103915278A (en) * 2014-03-26 2014-07-09 海门市曼博莱电子发展有限公司 Membrane switch
CN104598038A (en) * 2014-12-30 2015-05-06 苏州达方电子有限公司 Luminous keyboard and manufacturing method thereof
CN109478887A (en) * 2016-03-30 2019-03-15 陈�峰 It is a kind of to have the optical switch device for blocking body and blocking motion space
CN112130002A (en) * 2020-09-01 2020-12-25 珠海普林芯驰科技有限公司 Capacitance sensing device, working method thereof and electronic equipment

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CN101677038A (en) * 2008-09-19 2010-03-24 深圳富泰宏精密工业有限公司 backlight keyboard
CN101937790A (en) * 2009-06-30 2011-01-05 毅嘉科技股份有限公司 Key structure, key semi-finished product structure and method for manufacturing key structure
CN202796587U (en) * 2012-09-27 2013-03-13 闳晖科技(苏州)有限公司 Key structure with light guide function

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CN2651921Y (en) * 2003-08-28 2004-10-27 达方电子股份有限公司 Thin-film circuit assembly and luminescent key therewith
EP1944782A1 (en) * 2005-05-19 2008-07-16 Samsung Electronics Co., Ltd. Keypad and keypad assembly
CN101677038A (en) * 2008-09-19 2010-03-24 深圳富泰宏精密工业有限公司 backlight keyboard
CN101937790A (en) * 2009-06-30 2011-01-05 毅嘉科技股份有限公司 Key structure, key semi-finished product structure and method for manufacturing key structure
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103915273A (en) * 2014-03-26 2014-07-09 海门市曼博莱电子发展有限公司 Composite touch thin film switch
CN103915278A (en) * 2014-03-26 2014-07-09 海门市曼博莱电子发展有限公司 Membrane switch
CN104598038A (en) * 2014-12-30 2015-05-06 苏州达方电子有限公司 Luminous keyboard and manufacturing method thereof
CN104598038B (en) * 2014-12-30 2017-06-20 苏州达方电子有限公司 Illuminated keyboard and its manufacture method
CN109478887A (en) * 2016-03-30 2019-03-15 陈�峰 It is a kind of to have the optical switch device for blocking body and blocking motion space
CN109478887B (en) * 2016-03-30 2022-07-12 陈�峰 Optical switch device with blocking body and blocking action space
CN112130002A (en) * 2020-09-01 2020-12-25 珠海普林芯驰科技有限公司 Capacitance sensing device, working method thereof and electronic equipment

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Application publication date: 20140115